Robert pringle



(No-Model.)y l ,1

- I R. PRINGLE. Y i l GAS STUVE 'FORGOOKING PURPOSES, 5o. No. 605,011.

Patented May 31, 1898.

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INVENTOH:

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UNITED STATES PATENT OFFICE;

ROBERT PRINGLE, OE LONDON, ENGLAND.

GAS-STOVE F.OR COOKING PURPOSES, 80G.

SPECIFICATION forming part'of Letters Patent No. 6E5,011, dated Mayl, 1,898.

.Application and 'August 28, i897.

To (tu whom it 71mg/ concern:

Beit known that I, ROBERT PEINGLE, of 1 1 l EliotPark, Blackheath, London,in the county of Kent,l England, have invented new'and use-y ful Improvements in Gas-Stoves for Cooking v and other Purposes, of Which'the followingis afull, clear, and exact description.

This 'invention relates to a gas-heated stove adapted to roasting, baking, and other cook- IO ing purposes.

The invention'will be described Withrcl#l erence to the accompanying drawings, wherei11 Figures 1 and 2 are elevations in vertical section on planes at `right angles toone another. Fig. `Sis a horizontalsectionof "the lower part of the stove. Fig. 4'is atop plan showing removable burners for boiling purposes. l

The stove comprises an outer casing A, of

1 rectangular or other f orm, which maybe made of enameled cast or sheet iron lagged with al non-conducting material.A Itfcontains roasting-spaces B B,-and above theseja hot-chamber Q, which may serve as an oven and from which the upper one, B', of the two roastingspaces is separated by a horizontal partition D. Access may be had to .the spaces B B l and the chamber C by doors E and F, Fig. 2, which are also lagged with non-conducting material and provided with-talc windows e and f and with brackets supporting thermometers e', which are visible through the windows.

Withinthe casing A, along -the sides and .back-of the lowerroasting-'chamber B, is an air-heating chamber H, i'nclosed in a sheetmetal casing odset within the casing A, and

' in the top and bottom plates h h' of 'this -chamber Aare fixed rows of vertical'heat-radif ating iiues G, preferably of tire-lclay, which .tubes traverse' the air-heating chamber H and open attop and bottom to the upper y In the lowery part of the roasting-ehamberB 'and beneath the bottom plate h' oftheair-heatin g chamber H are burners 1' upona gas-pipe I,

A. which connects with a regenerative gas-heating tube J, connected with the gas-supply below and passing up through chamberH and down through one of the ues vGr to the pipe 'Lv AAir .is admitted to the chamber-H through .Serial No. 649,864. (No model.)

the'casing A and is caused by a baiile h3 to v pass up and circulate in the downward direction around the Iiues G, between'the baffle h8 and the inner wall h4 of the chamber H, Whereby the air becomes heated before passing down between the baille h3 and another baiiie h5, which extends downward to apointbelow the'level of the burners, so that the air entering the lower part of the roasting-space B- in proximity to but below the level of the burners will not blow the llames inward toward the roasting-space or disturb the steadiness of the flames.

- vAs above mentioned, the flames are not directly beneath the lues G, and in order to'cond uct the hot'gases toward the lues and prevent them spreadin'g directly into the roast' ,ing-space B the inner wall h4'of the chamber H is prolonged downward below the bottom of the said chamber, so as 'to form a curtain, which also screens the burners from fat falling through the space B. The roasting-space B is'divided from'the upper roasting-space B' by one ormorephorizoutal gratings K, upon vwhich a joint of meat ora cooking utensil may be placed, the grating or. gratings being removable to admit of a joint of meat being hung in the conjoined spaces B and B', as i111-, dicated in dotted lines in Fig. "2.' The area of the grating may correspond to that of the space surrounded bythe air-heatingfchanfber, or it may extendover the iflues G, as shown. In any case the burners should not be directly beneath the ,fines-G, but at one side thereof, more or'less, beneath the intermediate portions of the bottom plate h of the air-heating chamber H, as shown, so as to avoid all liability of fat or liquid falling through the iues G onto the burners. rlhe hot air and gases pass from the upper roasting-space B through holes Z in the bottom plate D of' the oven C, the draft and ventiper L, while a baffle or baies, such as L', may be sofiXed as to direct the courseof the hot air and 'gases on leaving the apertures l in such a way as to" distribute the hot air and y gases equally through the oven.

The effect of the holesl beneath the iloor of the oven and entirely to one side thereof 'and partially screened by the balile" L' is that articleslation bei-ng regulated by a hit-an d-miss dam- IOO placed in the oven are out of line of the draft and therefore out of cont-act with vapors from the roasting-spaces.

The top plate c of the oven-chamber C is provided with apertures M for the escape of the heated air and products of combustion, the heated air being utilized for effecting the complete combustion ot' gas-jets at ring-burners N to be used for heat-ing vessels placed over the said burners N. These burners are supplied with heated gas from the gas-heater J through ppesj, which pass up inside the' stove, so as to maintain or still further increase the heat of the gas, the pipes j passing out through the side of the casing at the upper part, where they are provided with stopcocks j to control the supply of gas to the ringburners N, and with supporting-sockets in which the arms carrying the ring-burners N are pivoted, so that they may be swung entirely aside when not required. The burners N are surrounded by circular casings or kettle-supports n, upon which the vessels are placed and which are removable to admit of swinging the burners entirelyaside, so as to leave the whole top surface of the oven C unencumbered and available as a hot-plate. When the burners are swung aside for that purpose, the stove would be surmounted by a removable grating O, provided with upstanding sides O to prevent articles placed thereon from falling off. The space thus inclosed may be made to form a removable oven, it required, by inclosing the top by a cover and providing a door in the front side.

The bottom of the roasting-chamber B is apertured at the center and closed by a basting-dish P, supported and fitted to slide in guides, so as to admit of easy removal and prevent the access of cold air to the burners.

It will be observed that a joint placed in the lower part ofl-'the roasting-space B will be cooked only by radiant heat from the flames, fines, and sides of the chamber without exposure to any fumes or gaseous products of combustion, while the upper roasting-space B' extends to the full area of the casing A and is traversed by the hot air and products of combustion from the flues.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is- 1. A gas-heated cooking-stovehavingacasing comprising a roasting-space, a door at the front oi' the roasting-space, an air admission and heatingchambersurroundingthe remaining sidesof the roasting-space and located at the lower part thereof, the upper part of the air-heating chamber being offset or inwardly projecting and being traversed by vertical ues leading from the space beneath to the roasting-space above, burners in the space beneath the air-heating chamber but not directly beneath the flues, air-inlets outside of a baffle rising within the chamber and directing the incoming air against the fines, and a depending baffle or curtain inclosinga downcastpassage opening to the combustion-chamber at or below the level of the burners therein, substantially as specified.

2. A gas-heated cooking-stove having a casing, comprisnga roasting-space, a door at thc front of the roasting-space an a'ir admission and heating chamber surroundingth'e remaining sides of the roasting-space and located at the lower part thereof, the upper part of the air-heating chamber being oiset or inwardly projecting and being traversed by vertical ues leading from the space beneath to the roasting-space above, burners in the space beneath the ar-heatin g chamber but not directly beneath the fines, air-inlets outside of a baille rising Within the chamber and directing the incoming air against the fines, anda depending baiile or curtain inclosing a downcast passage opening to the combustion-chamber at or below the level of the burners therein, and an inner curtain depending within the line of the burners so as to separate the upper part of the combustion-space from the inclosed roasting-space to such an extent as to prevent the flames being defiected inward and the products of combustion from passing up through the roasting-chamber, while permitting direct radiation of the heat from the flames to the roasting-space, substantially as specified.

3. A gas-heated cooking-stove having a casing, comprising a roasting-space having a door at the front of the roasting-space, an air admission and heating chamber surrounding the remaining sides of the roasting-spacev and located at the lower part thereof, the upper part of the air-heating chamber being oilsct or inwardly projecting and being traversed by vertical flues leading from the space beneath to the roasting-space above, burners in the space beneath the air-heating chamber but not directly beneath the flues, air-inlets outside of a baiiie rising Within the chamber and directing the incoming air against the flues, and a depending bale or curtain inclosing a downcast passage opening to the combustion-chamber at or below the level of the burners therein, an inner curtain depending within the line of the burners so as to insure the passage of the products of combustion through the lues alone while permitting of direct radiation from the fiames to t-he roasting-space, and a grating dividing the Yroasting-space into a lower space heated only by radiation and an upper space heated mainly by convection-currents from the flues discharging therein, substantially as specified.

RO BERT PRINGLE.

In presence of W. N. HOLMES, T. W. KENNARD.

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